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llvm / llvm-archive / cfaec05de39adb34392b8c7b1ad4b32abbf3663d / . / llvm-gcc-4.2 / gcc / ada / osint.adb
blob: 01262369c8037e004a9899793a1dc3cb4415d12b [file] [log] [blame]
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- O S I N T --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Fmap; use Fmap;
with Gnatvsn; use Gnatvsn;
with Hostparm;
with Namet; use Namet;
with Opt; use Opt;
with Output; use Output;
with Sdefault; use Sdefault;
with Table;
with Targparm; use Targparm;
with System.Case_Util; use System.Case_Util;
with Unchecked_Conversion;
with GNAT.HTable;
package body Osint is
Running_Program : Program_Type := Unspecified;
-- comment required here ???
Program_Set : Boolean := False;
-- comment required here ???
Std_Prefix : String_Ptr;
-- Standard prefix, computed dynamically the first time Relocate_Path
-- is called, and cached for subsequent calls.
Empty : aliased String := "";
No_Dir : constant String_Ptr := Empty'Access;
-- Used in Locate_File as a fake directory when Name is already an
-- absolute path.
-------------------------------------
-- Use of Name_Find and Name_Enter --
-------------------------------------
-- This package creates a number of source, ALI and object file names
-- that are used to locate the actual file and for the purpose of
-- message construction. These names need not be accessible by Name_Find,
-- and can be therefore created by using routine Name_Enter. The files in
-- question are file names with a prefix directory (ie the files not
-- in the current directory). File names without a prefix directory are
-- entered with Name_Find because special values might be attached to
-- the various Info fields of the corresponding name table entry.
-----------------------
-- Local Subprograms --
-----------------------
function Append_Suffix_To_File_Name
(Name : Name_Id;
Suffix : String) return Name_Id;
-- Appends Suffix to Name and returns the new name
function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type;
-- Convert OS format time to GNAT format time stamp
function Concat (String_One : String; String_Two : String) return String;
-- Concatenates 2 strings and returns the result of the concatenation
function Executable_Prefix return String_Ptr;
-- Returns the name of the root directory where the executable is stored.
-- The executable must be located in a directory called "bin", or
-- under root/lib/gcc-lib/..., or under root/libexec/gcc/... Thus, if
-- the executable is stored in directory "/foo/bar/bin", this routine
-- returns "/foo/bar/". Return "" if the location is not recognized
-- as described above.
function Update_Path (Path : String_Ptr) return String_Ptr;
-- Update the specified path to replace the prefix with the location
-- where GNAT is installed. See the file prefix.c in GCC for details.
procedure Write_With_Check (A : Address; N : Integer);
-- Writes N bytes from buffer starting at address A to file whose FD is
-- stored in Output_FD, and whose file name is stored as a File_Name_Type
-- in Output_File_Name. A check is made for disk full, and if this is
-- detected, the file being written is deleted, and a fatal error is
-- signalled.
function Locate_File
(N : File_Name_Type;
T : File_Type;
Dir : Natural;
Name : String) return File_Name_Type;
-- See if the file N whose name is Name exists in directory Dir. Dir is
-- an index into the Lib_Search_Directories table if T = Library.
-- Otherwise if T = Source, Dir is an index into the
-- Src_Search_Directories table. Returns the File_Name_Type of the
-- full file name if file found, or No_File if not found.
function C_String_Length (S : Address) return Integer;
-- Returns length of a C string. Returns zero for a null address
function To_Path_String_Access
(Path_Addr : Address;
Path_Len : Integer) return String_Access;
-- Converts a C String to an Ada String. Are we doing this to avoid
-- withing Interfaces.C.Strings ???
------------------------------
-- Other Local Declarations --
------------------------------
EOL : constant Character := ASCII.LF;
-- End of line character
Number_File_Names : Int := 0;
-- The total number of file names found on command line and placed in
-- File_Names.
Look_In_Primary_Directory_For_Current_Main : Boolean := False;
-- When this variable is True, Find_File will only look in
-- the Primary_Directory for the Current_Main file.
-- This variable is always True for the compiler.
-- It is also True for gnatmake, when the soucr name given
-- on the command line has directory information.
Current_Full_Source_Name : File_Name_Type := No_File;
Current_Full_Source_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
Current_Full_Lib_Name : File_Name_Type := No_File;
Current_Full_Lib_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
Current_Full_Obj_Name : File_Name_Type := No_File;
Current_Full_Obj_Stamp : Time_Stamp_Type := Empty_Time_Stamp;
-- Respectively full name (with directory info) and time stamp of
-- the latest source, library and object files opened by Read_Source_File
-- and Read_Library_Info.
------------------
-- Search Paths --
------------------
Primary_Directory : constant := 0;
-- This is index in the tables created below for the first directory to
-- search in for source or library information files. This is the
-- directory containing the latest main input file (a source file for
-- the compiler or a library file for the binder).
package Src_Search_Directories is new Table.Table (
Table_Component_Type => String_Ptr,
Table_Index_Type => Natural,
Table_Low_Bound => Primary_Directory,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Osint.Src_Search_Directories");
-- Table of names of directories in which to search for source (Compiler)
-- files. This table is filled in the order in which the directories are
-- to be searched, and then used in that order.
package Lib_Search_Directories is new Table.Table (
Table_Component_Type => String_Ptr,
Table_Index_Type => Natural,
Table_Low_Bound => Primary_Directory,
Table_Initial => 10,
Table_Increment => 100,
Table_Name => "Osint.Lib_Search_Directories");
-- Table of names of directories in which to search for library (Binder)
-- files. This table is filled in the order in which the directories are
-- to be searched and then used in that order. The reason for having two
-- distinct tables is that we need them both in gnatmake.
---------------------
-- File Hash Table --
---------------------
-- The file hash table is provided to free the programmer from any
-- efficiency concern when retrieving full file names or time stamps of
-- source files. If the programmer calls Source_File_Data (Cache => True)
-- he is guaranteed that the price to retrieve the full name (ie with
-- directory info) or time stamp of the file will be payed only once,
-- the first time the full name is actually searched (or the first time
-- the time stamp is actually retrieved). This is achieved by employing
-- a hash table that stores as a key the File_Name_Type of the file and
-- associates to that File_Name_Type the full file name of the file and its
-- time stamp.
File_Cache_Enabled : Boolean := False;
-- Set to true if you want the enable the file data caching mechanism
type File_Hash_Num is range 0 .. 1020;
function File_Hash (F : File_Name_Type) return File_Hash_Num;
-- Compute hash index for use by Simple_HTable
package File_Name_Hash_Table is new GNAT.HTable.Simple_HTable (
Header_Num => File_Hash_Num,
Element => File_Name_Type,
No_Element => No_File,
Key => File_Name_Type,
Hash => File_Hash,
Equal => "=");
package File_Stamp_Hash_Table is new GNAT.HTable.Simple_HTable (
Header_Num => File_Hash_Num,
Element => Time_Stamp_Type,
No_Element => Empty_Time_Stamp,
Key => File_Name_Type,
Hash => File_Hash,
Equal => "=");
function Smart_Find_File
(N : File_Name_Type;
T : File_Type) return File_Name_Type;
-- Exactly like Find_File except that if File_Cache_Enabled is True this
-- routine looks first in the hash table to see if the full name of the
-- file is already available.
function Smart_File_Stamp
(N : File_Name_Type;
T : File_Type) return Time_Stamp_Type;
-- Takes the same parameter as the routine above (N is a file name
-- without any prefix directory information) and behaves like File_Stamp
-- except that if File_Cache_Enabled is True this routine looks first in
-- the hash table to see if the file stamp of the file is already
-- available.
-----------------------------
-- Add_Default_Search_Dirs --
-----------------------------
procedure Add_Default_Search_Dirs is
Search_Dir : String_Access;
Search_Path : String_Access;
Path_File_Name : String_Access;
procedure Add_Search_Dir
(Search_Dir : String;
Additional_Source_Dir : Boolean);
procedure Add_Search_Dir
(Search_Dir : String_Access;
Additional_Source_Dir : Boolean);
-- Add a source search dir or a library search dir, depending on the
-- value of Additional_Source_Dir.
procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean);
-- Open a path file and read the directory to search, one per line
function Get_Libraries_From_Registry return String_Ptr;
-- On Windows systems, get the list of installed standard libraries
-- from the registry key:
-- HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\
-- GNAT\Standard Libraries
-- Return an empty string on other systems
--------------------
-- Add_Search_Dir --
--------------------
procedure Add_Search_Dir
(Search_Dir : String;
Additional_Source_Dir : Boolean)
is
begin
if Additional_Source_Dir then
Add_Src_Search_Dir (Search_Dir);
else
Add_Lib_Search_Dir (Search_Dir);
end if;
end Add_Search_Dir;
procedure Add_Search_Dir
(Search_Dir : String_Access;
Additional_Source_Dir : Boolean)
is
begin
if Additional_Source_Dir then
Add_Src_Search_Dir (Search_Dir.all);
else
Add_Lib_Search_Dir (Search_Dir.all);
end if;
end Add_Search_Dir;
------------------------
-- Get_Dirs_From_File --
------------------------
procedure Get_Dirs_From_File (Additional_Source_Dir : Boolean) is
File_FD : File_Descriptor;
Buffer : String (1 .. Path_File_Name'Length + 1);
Len : Natural;
Actual_Len : Natural;
S : String_Access;
Curr : Natural;
First : Natural;
Ch : Character;
Status : Boolean;
-- For the call to Close
begin
-- Construct a C compatible character string buffer
Buffer (1 .. Buffer'Last - 1) := Path_File_Name.all;
Buffer (Buffer'Last) := ASCII.NUL;
File_FD := Open_Read (Buffer'Address, Binary);
-- If we cannot open the file, we ignore it, we don't fail
if File_FD = Invalid_FD then
return;
end if;
Len := Integer (File_Length (File_FD));
S := new String (1 .. Len);
-- Read the file. Note that the loop is not necessary since the
-- whole file is read at once except on VMS.
Curr := 1;
Actual_Len := Len;
while Curr <= Len and then Actual_Len /= 0 loop
Actual_Len := Read (File_FD, S (Curr)'Address, Len);
Curr := Curr + Actual_Len;
end loop;
-- We are done with the file, so we close it
Close (File_FD, Status);
-- We ignore any error here, because we have successfully read the
-- file.
-- Now, we read line by line
First := 1;
Curr := 0;
while Curr < Len loop
Ch := S (Curr + 1);
if Ch = ASCII.CR or else Ch = ASCII.LF
or else Ch = ASCII.FF or else Ch = ASCII.VT
then
if First <= Curr then
Add_Search_Dir (S (First .. Curr), Additional_Source_Dir);
end if;
First := Curr + 2;
end if;
Curr := Curr + 1;
end loop;
-- Last line is a special case, if the file does not end with
-- an end of line mark.
if First <= S'Last then
Add_Search_Dir (S (First .. S'Last), Additional_Source_Dir);
end if;
end Get_Dirs_From_File;
---------------------------------
-- Get_Libraries_From_Registry --
---------------------------------
function Get_Libraries_From_Registry return String_Ptr is
function C_Get_Libraries_From_Registry return Address;
pragma Import (C, C_Get_Libraries_From_Registry,
"__gnat_get_libraries_from_registry");
function Strlen (Str : Address) return Integer;
pragma Import (C, Strlen, "strlen");
procedure Strncpy (X : Address; Y : Address; Length : Integer);
pragma Import (C, Strncpy, "strncpy");
Result_Ptr : Address;
Result_Length : Integer;
Out_String : String_Ptr;
begin
Result_Ptr := C_Get_Libraries_From_Registry;
Result_Length := Strlen (Result_Ptr);
Out_String := new String (1 .. Result_Length);
Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
return Out_String;
end Get_Libraries_From_Registry;
-- Start of processing for Add_Default_Search_Dirs
begin
-- After the locations specified on the command line, the next places
-- to look for files are the directories specified by the appropriate
-- environment variable. Get this value, extract the directory names
-- and store in the tables.
-- Check for eventual project path file env vars
Path_File_Name := Getenv (Project_Include_Path_File);
if Path_File_Name'Length > 0 then
Get_Dirs_From_File (Additional_Source_Dir => True);
end if;
Path_File_Name := Getenv (Project_Objects_Path_File);
if Path_File_Name'Length > 0 then
Get_Dirs_From_File (Additional_Source_Dir => False);
end if;
-- On VMS, don't expand the logical name (e.g. environment variable),
-- just put it into Unix (e.g. canonical) format. System services
-- will handle the expansion as part of the file processing.
for Additional_Source_Dir in False .. True loop
if Additional_Source_Dir then
Search_Path := Getenv (Ada_Include_Path);
if Search_Path'Length > 0 then
if Hostparm.OpenVMS then
Search_Path := To_Canonical_Path_Spec ("ADA_INCLUDE_PATH:");
else
Search_Path := To_Canonical_Path_Spec (Search_Path.all);
end if;
end if;
else
Search_Path := Getenv (Ada_Objects_Path);
if Search_Path'Length > 0 then
if Hostparm.OpenVMS then
Search_Path := To_Canonical_Path_Spec ("ADA_OBJECTS_PATH:");
else
Search_Path := To_Canonical_Path_Spec (Search_Path.all);
end if;
end if;
end if;
Get_Next_Dir_In_Path_Init (Search_Path);
loop
Search_Dir := Get_Next_Dir_In_Path (Search_Path);
exit when Search_Dir = null;
Add_Search_Dir (Search_Dir, Additional_Source_Dir);
end loop;
end loop;
-- For the compiler, if --RTS= was specified, add the runtime
-- directories.
if RTS_Src_Path_Name /= null and then
RTS_Lib_Path_Name /= null
then
Add_Search_Dirs (RTS_Src_Path_Name, Include);
Add_Search_Dirs (RTS_Lib_Path_Name, Objects);
else
if not Opt.No_Stdinc then
-- For WIN32 systems, look for any system libraries defined in
-- the registry. These are added to both source and object
-- directories.
Search_Path := String_Access (Get_Libraries_From_Registry);
Get_Next_Dir_In_Path_Init (Search_Path);
loop
Search_Dir := Get_Next_Dir_In_Path (Search_Path);
exit when Search_Dir = null;
Add_Search_Dir (Search_Dir, False);
Add_Search_Dir (Search_Dir, True);
end loop;
-- The last place to look are the defaults
Search_Path :=
Read_Default_Search_Dirs
(String_Access (Update_Path (Search_Dir_Prefix)),
Include_Search_File,
String_Access (Update_Path (Include_Dir_Default_Name)));
Get_Next_Dir_In_Path_Init (Search_Path);
loop
Search_Dir := Get_Next_Dir_In_Path (Search_Path);
exit when Search_Dir = null;
Add_Search_Dir (Search_Dir, True);
end loop;
end if;
if not Opt.No_Stdlib and not Opt.RTS_Switch then
Search_Path :=
Read_Default_Search_Dirs
(String_Access (Update_Path (Search_Dir_Prefix)),
Objects_Search_File,
String_Access (Update_Path (Object_Dir_Default_Name)));
Get_Next_Dir_In_Path_Init (Search_Path);
loop
Search_Dir := Get_Next_Dir_In_Path (Search_Path);
exit when Search_Dir = null;
Add_Search_Dir (Search_Dir, False);
end loop;
end if;
end if;
end Add_Default_Search_Dirs;
--------------
-- Add_File --
--------------
procedure Add_File (File_Name : String; Index : Int := No_Index) is
begin
Number_File_Names := Number_File_Names + 1;
-- As Add_File may be called for mains specified inside
-- a project file, File_Names may be too short and needs
-- to be extended.
if Number_File_Names > File_Names'Last then
File_Names := new File_Name_Array'(File_Names.all & File_Names.all);
File_Indexes :=
new File_Index_Array'(File_Indexes.all & File_Indexes.all);
end if;
File_Names (Number_File_Names) := new String'(File_Name);
File_Indexes (Number_File_Names) := Index;
end Add_File;
------------------------
-- Add_Lib_Search_Dir --
------------------------
procedure Add_Lib_Search_Dir (Dir : String) is
begin
if Dir'Length = 0 then
Fail ("missing library directory name");
end if;
Lib_Search_Directories.Increment_Last;
Lib_Search_Directories.Table (Lib_Search_Directories.Last) :=
Normalize_Directory_Name (Dir);
end Add_Lib_Search_Dir;
---------------------
-- Add_Search_Dirs --
---------------------
procedure Add_Search_Dirs
(Search_Path : String_Ptr;
Path_Type : Search_File_Type)
is
Current_Search_Path : String_Access;
begin
Get_Next_Dir_In_Path_Init (String_Access (Search_Path));
loop
Current_Search_Path :=
Get_Next_Dir_In_Path (String_Access (Search_Path));
exit when Current_Search_Path = null;
if Path_Type = Include then
Add_Src_Search_Dir (Current_Search_Path.all);
else
Add_Lib_Search_Dir (Current_Search_Path.all);
end if;
end loop;
end Add_Search_Dirs;
------------------------
-- Add_Src_Search_Dir --
------------------------
procedure Add_Src_Search_Dir (Dir : String) is
begin
if Dir'Length = 0 then
Fail ("missing source directory name");
end if;
Src_Search_Directories.Increment_Last;
Src_Search_Directories.Table (Src_Search_Directories.Last) :=
Normalize_Directory_Name (Dir);
end Add_Src_Search_Dir;
--------------------------------
-- Append_Suffix_To_File_Name --
--------------------------------
function Append_Suffix_To_File_Name
(Name : Name_Id;
Suffix : String) return Name_Id
is
begin
Get_Name_String (Name);
Name_Buffer (Name_Len + 1 .. Name_Len + Suffix'Length) := Suffix;
Name_Len := Name_Len + Suffix'Length;
return Name_Find;
end Append_Suffix_To_File_Name;
---------------------
-- C_String_Length --
---------------------
function C_String_Length (S : Address) return Integer is
function Strlen (S : Address) return Integer;
pragma Import (C, Strlen, "strlen");
begin
if S = Null_Address then
return 0;
else
return Strlen (S);
end if;
end C_String_Length;
------------------------------
-- Canonical_Case_File_Name --
------------------------------
-- For now, we only deal with the case of a-z. Eventually we should
-- worry about other Latin-1 letters on systems that support this ???
procedure Canonical_Case_File_Name (S : in out String) is
begin
if not File_Names_Case_Sensitive then
for J in S'Range loop
if S (J) in 'A' .. 'Z' then
S (J) := Character'Val (
Character'Pos (S (J)) +
Character'Pos ('a') -
Character'Pos ('A'));
end if;
end loop;
end if;
end Canonical_Case_File_Name;
------------
-- Concat --
------------
function Concat (String_One : String; String_Two : String) return String is
Buffer : String (1 .. String_One'Length + String_Two'Length);
begin
Buffer (1 .. String_One'Length) := String_One;
Buffer (String_One'Length + 1 .. Buffer'Last) := String_Two;
return Buffer;
end Concat;
---------------------------
-- Create_File_And_Check --
---------------------------
procedure Create_File_And_Check
(Fdesc : out File_Descriptor;
Fmode : Mode)
is
begin
Output_File_Name := Name_Enter;
Fdesc := Create_File (Name_Buffer'Address, Fmode);
if Fdesc = Invalid_FD then
Fail ("Cannot create: ", Name_Buffer (1 .. Name_Len));
end if;
end Create_File_And_Check;
------------------------
-- Current_File_Index --
------------------------
function Current_File_Index return Int is
begin
return File_Indexes (Current_File_Name_Index);
end Current_File_Index;
--------------------------------
-- Current_Library_File_Stamp --
--------------------------------
function Current_Library_File_Stamp return Time_Stamp_Type is
begin
return Current_Full_Lib_Stamp;
end Current_Library_File_Stamp;
-------------------------------
-- Current_Object_File_Stamp --
-------------------------------
function Current_Object_File_Stamp return Time_Stamp_Type is
begin
return Current_Full_Obj_Stamp;
end Current_Object_File_Stamp;
-------------------------------
-- Current_Source_File_Stamp --
-------------------------------
function Current_Source_File_Stamp return Time_Stamp_Type is
begin
return Current_Full_Source_Stamp;
end Current_Source_File_Stamp;
----------------------------
-- Dir_In_Obj_Search_Path --
----------------------------
function Dir_In_Obj_Search_Path (Position : Natural) return String_Ptr is
begin
if Opt.Look_In_Primary_Dir then
return
Lib_Search_Directories.Table (Primary_Directory + Position - 1);
else
return Lib_Search_Directories.Table (Primary_Directory + Position);
end if;
end Dir_In_Obj_Search_Path;
----------------------------
-- Dir_In_Src_Search_Path --
----------------------------
function Dir_In_Src_Search_Path (Position : Natural) return String_Ptr is
begin
if Opt.Look_In_Primary_Dir then
return
Src_Search_Directories.Table (Primary_Directory + Position - 1);
else
return Src_Search_Directories.Table (Primary_Directory + Position);
end if;
end Dir_In_Src_Search_Path;
---------------------
-- Executable_Name --
---------------------
function Executable_Name (Name : File_Name_Type) return File_Name_Type is
Exec_Suffix : String_Access;
begin
if Name = No_File then
return No_File;
end if;
Get_Name_String (Name);
Exec_Suffix := Get_Executable_Suffix;
for J in Exec_Suffix'Range loop
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := Exec_Suffix (J);
end loop;
Free (Exec_Suffix);
return Name_Enter;
end Executable_Name;
-----------------------
-- Executable_Prefix --
-----------------------
function Executable_Prefix return String_Ptr is
function Get_Install_Dir (Exec : String) return String_Ptr;
-- S is the executable name preceeded by the absolute or relative
-- path, e.g. "c:\usr\bin\gcc.exe" or "..\bin\gcc".
---------------------
-- Get_Install_Dir --
---------------------
function Get_Install_Dir (Exec : String) return String_Ptr is
begin
for J in reverse Exec'Range loop
if Is_Directory_Separator (Exec (J)) then
if J < Exec'Last - 5 then
if (To_Lower (Exec (J + 1)) = 'l'
and then To_Lower (Exec (J + 2)) = 'i'
and then To_Lower (Exec (J + 3)) = 'b')
or else
(To_Lower (Exec (J + 1)) = 'b'
and then To_Lower (Exec (J + 2)) = 'i'
and then To_Lower (Exec (J + 3)) = 'n')
then
return new String'(Exec (Exec'First .. J));
end if;
end if;
end if;
end loop;
return new String'("");
end Get_Install_Dir;
-- Start of processing for Executable_Prefix
begin
if Exec_Name = null then
Exec_Name := new String (1 .. Len_Arg (0));
Osint.Fill_Arg (Exec_Name (1)'Address, 0);
end if;
-- First determine if a path prefix was placed in front of the
-- executable name.
for J in reverse Exec_Name'Range loop
if Is_Directory_Separator (Exec_Name (J)) then
return Get_Install_Dir (Exec_Name.all);
end if;
end loop;
-- If we come here, the user has typed the executable name with no
-- directory prefix.
return Get_Install_Dir
(GNAT.OS_Lib.Locate_Exec_On_Path (Exec_Name.all).all);
end Executable_Prefix;
------------------
-- Exit_Program --
------------------
procedure Exit_Program (Exit_Code : Exit_Code_Type) is
begin
-- The program will exit with the following status:
-- 0 if the object file has been generated (with or without warnings)
-- 1 if recompilation was not needed (smart recompilation)
-- 2 if gnat1 has been killed by a signal (detected by GCC)
-- 4 for a fatal error
-- 5 if there were errors
-- 6 if no code has been generated (spec)
-- Note that exit code 3 is not used and must not be used as this is
-- the code returned by a program aborted via C abort() routine on
-- Windows. GCC checks for that case and thinks that the child process
-- has been aborted. This code (exit code 3) used to be the code used
-- for E_No_Code, but E_No_Code was changed to 6 for this reason.
case Exit_Code is
when E_Success => OS_Exit (0);
when E_Warnings => OS_Exit (0);
when E_No_Compile => OS_Exit (1);
when E_Fatal => OS_Exit (4);
when E_Errors => OS_Exit (5);
when E_No_Code => OS_Exit (6);
when E_Abort => OS_Abort;
end case;
end Exit_Program;
----------
-- Fail --
----------
procedure Fail (S1 : String; S2 : String := ""; S3 : String := "") is
begin
-- We use Output in case there is a special output set up.
-- In this case Set_Standard_Error will have no immediate effect.
Set_Standard_Error;
Osint.Write_Program_Name;
Write_Str (": ");
Write_Str (S1);
Write_Str (S2);
Write_Str (S3);
Write_Eol;
Exit_Program (E_Fatal);
end Fail;
---------------
-- File_Hash --
---------------
function File_Hash (F : File_Name_Type) return File_Hash_Num is
begin
return File_Hash_Num (Int (F) rem File_Hash_Num'Range_Length);
end File_Hash;
----------------
-- File_Stamp --
----------------
function File_Stamp (Name : File_Name_Type) return Time_Stamp_Type is
begin
if Name = No_File then
return Empty_Time_Stamp;
end if;
Get_Name_String (Name);
if not Is_Regular_File (Name_Buffer (1 .. Name_Len)) then
return Empty_Time_Stamp;
else
Name_Buffer (Name_Len + 1) := ASCII.NUL;
return OS_Time_To_GNAT_Time (File_Time_Stamp (Name_Buffer));
end if;
end File_Stamp;
---------------
-- Find_File --
---------------
function Find_File
(N : File_Name_Type;
T : File_Type) return File_Name_Type
is
begin
Get_Name_String (N);
declare
File_Name : String renames Name_Buffer (1 .. Name_Len);
File : File_Name_Type := No_File;
Last_Dir : Natural;
begin
-- If we are looking for a config file, look only in the current
-- directory, i.e. return input argument unchanged. Also look
-- only in the current directory if we are looking for a .dg
-- file (happens in -gnatD mode)
if T = Config
or else (Debug_Generated_Code
and then Name_Len > 3
and then
(Name_Buffer (Name_Len - 2 .. Name_Len) = ".dg"
or else
(Hostparm.OpenVMS and then
Name_Buffer (Name_Len - 2 .. Name_Len) = "_dg")))
then
return N;
-- If we are trying to find the current main file just look in the
-- directory where the user said it was.
elsif Look_In_Primary_Directory_For_Current_Main
and then Current_Main = N
then
return Locate_File (N, T, Primary_Directory, File_Name);
-- Otherwise do standard search for source file
else
-- Check the mapping of this file name
File := Mapped_Path_Name (N);
-- If the file name is mapped to a path name, return the
-- corresponding path name
if File /= No_File then
-- For locally removed file, Error_Name is returned; then
-- return No_File, indicating the file is not a source.
if File = Error_Name then
return No_File;
else
return File;
end if;
end if;
-- First place to look is in the primary directory (i.e. the same
-- directory as the source) unless this has been disabled with -I-
if Opt.Look_In_Primary_Dir then
File := Locate_File (N, T, Primary_Directory, File_Name);
if File /= No_File then
return File;
end if;
end if;
-- Finally look in directories specified with switches -I/-aI/-aO
if T = Library then
Last_Dir := Lib_Search_Directories.Last;
else
Last_Dir := Src_Search_Directories.Last;
end if;
for D in Primary_Directory + 1 .. Last_Dir loop
File := Locate_File (N, T, D, File_Name);
if File /= No_File then
return File;
end if;
end loop;
return No_File;
end if;
end;
end Find_File;
-----------------------
-- Find_Program_Name --
-----------------------
procedure Find_Program_Name is
Command_Name : String (1 .. Len_Arg (0));
Cindex1 : Integer := Command_Name'First;
Cindex2 : Integer := Command_Name'Last;
begin
Fill_Arg (Command_Name'Address, 0);
-- The program name might be specified by a full path name. However,
-- we don't want to print that all out in an error message, so the
-- path might need to be stripped away.
for J in reverse Cindex1 .. Cindex2 loop
if Is_Directory_Separator (Command_Name (J)) then
Cindex1 := J + 1;
exit;
end if;
end loop;
-- Command_Name(Cindex1 .. Cindex2) is now the equivalent of the
-- POSIX command "basename argv[0]"
-- Strip off any versioning information such as found on VMS.
-- This would take the form of TOOL.exe followed by a ";" or "."
-- and a sequence of one or more numbers.
if Command_Name (Cindex2) in '0' .. '9' then
for J in reverse Cindex1 .. Cindex2 loop
if Command_Name (J) = '.' or Command_Name (J) = ';' then
Cindex2 := J - 1;
exit;
end if;
exit when Command_Name (J) not in '0' .. '9';
end loop;
end if;
-- Strip off any executable extension (usually nothing or .exe)
-- but formally reported by autoconf in the variable EXEEXT
if Cindex2 - Cindex1 >= 4 then
if To_Lower (Command_Name (Cindex2 - 3)) = '.'
and then To_Lower (Command_Name (Cindex2 - 2)) = 'e'
and then To_Lower (Command_Name (Cindex2 - 1)) = 'x'
and then To_Lower (Command_Name (Cindex2)) = 'e'
then
Cindex2 := Cindex2 - 4;
end if;
end if;
Name_Len := Cindex2 - Cindex1 + 1;
Name_Buffer (1 .. Name_Len) := Command_Name (Cindex1 .. Cindex2);
end Find_Program_Name;
------------------------
-- Full_Lib_File_Name --
------------------------
function Full_Lib_File_Name (N : File_Name_Type) return File_Name_Type is
begin
return Find_File (N, Library);
end Full_Lib_File_Name;
----------------------------
-- Full_Library_Info_Name --
----------------------------
function Full_Library_Info_Name return File_Name_Type is
begin
return Current_Full_Lib_Name;
end Full_Library_Info_Name;
---------------------------
-- Full_Object_File_Name --
---------------------------
function Full_Object_File_Name return File_Name_Type is
begin
return Current_Full_Obj_Name;
end Full_Object_File_Name;
----------------------
-- Full_Source_Name --
----------------------
function Full_Source_Name return File_Name_Type is
begin
return Current_Full_Source_Name;
end Full_Source_Name;
----------------------
-- Full_Source_Name --
----------------------
function Full_Source_Name (N : File_Name_Type) return File_Name_Type is
begin
return Smart_Find_File (N, Source);
end Full_Source_Name;
-------------------
-- Get_Directory --
-------------------
function Get_Directory (Name : File_Name_Type) return File_Name_Type is
begin
Get_Name_String (Name);
for J in reverse 1 .. Name_Len loop
if Is_Directory_Separator (Name_Buffer (J)) then
Name_Len := J;
return Name_Find;
end if;
end loop;
Name_Len := Hostparm.Normalized_CWD'Length;
Name_Buffer (1 .. Name_Len) := Hostparm.Normalized_CWD;
return Name_Find;
end Get_Directory;
--------------------------
-- Get_Next_Dir_In_Path --
--------------------------
Search_Path_Pos : Integer;
-- Keeps track of current position in search path. Initialized by the
-- call to Get_Next_Dir_In_Path_Init, updated by Get_Next_Dir_In_Path.
function Get_Next_Dir_In_Path
(Search_Path : String_Access) return String_Access
is
Lower_Bound : Positive := Search_Path_Pos;
Upper_Bound : Positive;
begin
loop
while Lower_Bound <= Search_Path'Last
and then Search_Path.all (Lower_Bound) = Path_Separator
loop
Lower_Bound := Lower_Bound + 1;
end loop;
exit when Lower_Bound > Search_Path'Last;
Upper_Bound := Lower_Bound;
while Upper_Bound <= Search_Path'Last
and then Search_Path.all (Upper_Bound) /= Path_Separator
loop
Upper_Bound := Upper_Bound + 1;
end loop;
Search_Path_Pos := Upper_Bound;
return new String'(Search_Path.all (Lower_Bound .. Upper_Bound - 1));
end loop;
return null;
end Get_Next_Dir_In_Path;
-------------------------------
-- Get_Next_Dir_In_Path_Init --
-------------------------------
procedure Get_Next_Dir_In_Path_Init (Search_Path : String_Access) is
begin
Search_Path_Pos := Search_Path'First;
end Get_Next_Dir_In_Path_Init;
--------------------------------------
-- Get_Primary_Src_Search_Directory --
--------------------------------------
function Get_Primary_Src_Search_Directory return String_Ptr is
begin
return Src_Search_Directories.Table (Primary_Directory);
end Get_Primary_Src_Search_Directory;
------------------------
-- Get_RTS_Search_Dir --
------------------------
function Get_RTS_Search_Dir
(Search_Dir : String;
File_Type : Search_File_Type) return String_Ptr
is
procedure Get_Current_Dir
(Dir : System.Address;
Length : System.Address);
pragma Import (C, Get_Current_Dir, "__gnat_get_current_dir");
Max_Path : Integer;
pragma Import (C, Max_Path, "__gnat_max_path_len");
-- Maximum length of a path name
Current_Dir : String_Ptr;
Default_Search_Dir : String_Access;
Default_Suffix_Dir : String_Access;
Local_Search_Dir : String_Access;
Norm_Search_Dir : String_Access;
Result_Search_Dir : String_Access;
Search_File : String_Access;
Temp_String : String_Ptr;
begin
-- Add a directory separator at the end of the directory if necessary
-- so that we can directly append a file to the directory
if Search_Dir (Search_Dir'Last) /= Directory_Separator then
Local_Search_Dir := new String'
(Concat (Search_Dir, String'(1 => Directory_Separator)));
else
Local_Search_Dir := new String'(Search_Dir);
end if;
if File_Type = Include then
Search_File := Include_Search_File;
Default_Suffix_Dir := new String'("adainclude");
else
Search_File := Objects_Search_File;
Default_Suffix_Dir := new String'("adalib");
end if;
Norm_Search_Dir := To_Canonical_Path_Spec (Local_Search_Dir.all);
if Is_Absolute_Path (Norm_Search_Dir.all) then
-- We first verify if there is a directory Include_Search_Dir
-- containing default search directories
Result_Search_Dir
:= Read_Default_Search_Dirs (Norm_Search_Dir,
Search_File,
null);
Default_Search_Dir := new String'
(Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
Free (Norm_Search_Dir);
if Result_Search_Dir /= null then
return String_Ptr (Result_Search_Dir);
elsif Is_Directory (Default_Search_Dir.all) then
return String_Ptr (Default_Search_Dir);
else
return null;
end if;
-- Search in the current directory
else
-- Get the current directory
declare
Buffer : String (1 .. Max_Path + 2);
Path_Len : Natural := Max_Path;
begin
Get_Current_Dir (Buffer'Address, Path_Len'Address);
if Buffer (Path_Len) /= Directory_Separator then
Path_Len := Path_Len + 1;
Buffer (Path_Len) := Directory_Separator;
end if;
Current_Dir := new String'(Buffer (1 .. Path_Len));
end;
Norm_Search_Dir :=
new String'(Concat (Current_Dir.all, Local_Search_Dir.all));
Result_Search_Dir :=
Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
Default_Search_Dir :=
new String'
(Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
Free (Norm_Search_Dir);
if Result_Search_Dir /= null then
return String_Ptr (Result_Search_Dir);
elsif Is_Directory (Default_Search_Dir.all) then
return String_Ptr (Default_Search_Dir);
else
-- Search in Search_Dir_Prefix/Search_Dir
Norm_Search_Dir :=
new String'
(Concat (Update_Path (Search_Dir_Prefix).all,
Local_Search_Dir.all));
Result_Search_Dir :=
Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
Default_Search_Dir :=
new String'
(Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
Free (Norm_Search_Dir);
if Result_Search_Dir /= null then
return String_Ptr (Result_Search_Dir);
elsif Is_Directory (Default_Search_Dir.all) then
return String_Ptr (Default_Search_Dir);
else
-- We finally search in Search_Dir_Prefix/rts-Search_Dir
Temp_String :=
new String'
(Concat (Update_Path (Search_Dir_Prefix).all, "rts-"));
Norm_Search_Dir :=
new String'(Concat (Temp_String.all, Local_Search_Dir.all));
Result_Search_Dir :=
Read_Default_Search_Dirs (Norm_Search_Dir, Search_File, null);
Default_Search_Dir :=
new String'
(Concat (Norm_Search_Dir.all, Default_Suffix_Dir.all));
Free (Norm_Search_Dir);
if Result_Search_Dir /= null then
return String_Ptr (Result_Search_Dir);
elsif Is_Directory (Default_Search_Dir.all) then
return String_Ptr (Default_Search_Dir);
else
return null;
end if;
end if;
end if;
end if;
end Get_RTS_Search_Dir;
--------------------------------
-- Include_Dir_Default_Prefix --
--------------------------------
function Include_Dir_Default_Prefix return String is
Include_Dir : String_Access :=
String_Access (Update_Path (Include_Dir_Default_Name));
begin
if Include_Dir = null then
return "";
else
declare
Result : constant String := Include_Dir.all;
begin
Free (Include_Dir);
return Result;
end;
end if;
end Include_Dir_Default_Prefix;
----------------
-- Initialize --
----------------
procedure Initialize is
begin
Number_File_Names := 0;
Current_File_Name_Index := 0;
Src_Search_Directories.Init;
Lib_Search_Directories.Init;
-- Start off by setting all suppress options to False, these will
-- be reset later (turning some on if -gnato is not specified, and
-- turning all of them on if -gnatp is specified).
Suppress_Options := (others => False);
-- Reserve the first slot in the search paths table. This is the
-- directory of the main source file or main library file and is
-- filled in by each call to Next_Main_Source/Next_Main_Lib_File with
-- the directory specified for this main source or library file. This
-- is the directory which is searched first by default. This default
-- search is inhibited by the option -I- for both source and library
-- files.
Src_Search_Directories.Set_Last (Primary_Directory);
Src_Search_Directories.Table (Primary_Directory) := new String'("");
Lib_Search_Directories.Set_Last (Primary_Directory);
Lib_Search_Directories.Table (Primary_Directory) := new String'("");
end Initialize;
----------------------------
-- Is_Directory_Separator --
----------------------------
function Is_Directory_Separator (C : Character) return Boolean is
begin
-- In addition to the default directory_separator allow the '/' to
-- act as separator since this is allowed in MS-DOS, Windows 95/NT,
-- and OS2 ports. On VMS, the situation is more complicated because
-- there are two characters to check for.
return
C = Directory_Separator
or else C = '/'
or else (Hostparm.OpenVMS
and then (C = ']' or else C = ':'));
end Is_Directory_Separator;
-------------------------
-- Is_Readonly_Library --
-------------------------
function Is_Readonly_Library (File : File_Name_Type) return Boolean is
begin
Get_Name_String (File);
pragma Assert (Name_Buffer (Name_Len - 3 .. Name_Len) = ".ali");
return not Is_Writable_File (Name_Buffer (1 .. Name_Len));
end Is_Readonly_Library;
-------------------
-- Lib_File_Name --
-------------------
function Lib_File_Name
(Source_File : File_Name_Type;
Munit_Index : Nat := 0) return File_Name_Type
is
begin
Get_Name_String (Source_File);
for J in reverse 2 .. Name_Len loop
if Name_Buffer (J) = '.' then
Name_Len := J - 1;
exit;
end if;
end loop;
if Munit_Index /= 0 then
Add_Char_To_Name_Buffer (Multi_Unit_Index_Character);
Add_Nat_To_Name_Buffer (Munit_Index);
end if;
Add_Char_To_Name_Buffer ('.');
Add_Str_To_Name_Buffer (ALI_Suffix.all);
return Name_Find;
end Lib_File_Name;
------------------------
-- Library_File_Stamp --
------------------------
function Library_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
begin
return File_Stamp (Find_File (N, Library));
end Library_File_Stamp;
-----------------
-- Locate_File --
-----------------
function Locate_File
(N : File_Name_Type;
T : File_Type;
Dir : Natural;
Name : String) return File_Name_Type
is
Dir_Name : String_Ptr;
begin
-- If Name is already an absolute path, do not look for a directory
if Is_Absolute_Path (Name) then
Dir_Name := No_Dir;
elsif T = Library then
Dir_Name := Lib_Search_Directories.Table (Dir);
else pragma Assert (T /= Config);
Dir_Name := Src_Search_Directories.Table (Dir);
end if;
declare
Full_Name : String (1 .. Dir_Name'Length + Name'Length);
begin
Full_Name (1 .. Dir_Name'Length) := Dir_Name.all;
Full_Name (Dir_Name'Length + 1 .. Full_Name'Length) := Name;
if not Is_Regular_File (Full_Name) then
return No_File;
else
-- If the file is in the current directory then return N itself
if Dir_Name'Length = 0 then
return N;
else
Name_Len := Full_Name'Length;
Name_Buffer (1 .. Name_Len) := Full_Name;
return Name_Enter;
end if;
end if;
end;
end Locate_File;
-------------------------------
-- Matching_Full_Source_Name --
-------------------------------
function Matching_Full_Source_Name
(N : File_Name_Type;
T : Time_Stamp_Type) return File_Name_Type
is
begin
Get_Name_String (N);
declare
File_Name : constant String := Name_Buffer (1 .. Name_Len);
File : File_Name_Type := No_File;
Last_Dir : Natural;
begin
if Opt.Look_In_Primary_Dir then
File := Locate_File (N, Source, Primary_Directory, File_Name);
if File /= No_File and then T = File_Stamp (N) then
return File;
end if;
end if;
Last_Dir := Src_Search_Directories.Last;
for D in Primary_Directory + 1 .. Last_Dir loop
File := Locate_File (N, Source, D, File_Name);
if File /= No_File and then T = File_Stamp (File) then
return File;
end if;
end loop;
return No_File;
end;
end Matching_Full_Source_Name;
----------------
-- More_Files --
----------------
function More_Files return Boolean is
begin
return (Current_File_Name_Index < Number_File_Names);
end More_Files;
-------------------------------
-- Nb_Dir_In_Obj_Search_Path --
-------------------------------
function Nb_Dir_In_Obj_Search_Path return Natural is
begin
if Opt.Look_In_Primary_Dir then
return Lib_Search_Directories.Last - Primary_Directory + 1;
else
return Lib_Search_Directories.Last - Primary_Directory;
end if;
end Nb_Dir_In_Obj_Search_Path;
-------------------------------
-- Nb_Dir_In_Src_Search_Path --
-------------------------------
function Nb_Dir_In_Src_Search_Path return Natural is
begin
if Opt.Look_In_Primary_Dir then
return Src_Search_Directories.Last - Primary_Directory + 1;
else
return Src_Search_Directories.Last - Primary_Directory;
end if;
end Nb_Dir_In_Src_Search_Path;
--------------------
-- Next_Main_File --
--------------------
function Next_Main_File return File_Name_Type is
File_Name : String_Ptr;
Dir_Name : String_Ptr;
Fptr : Natural;
begin
pragma Assert (More_Files);
Current_File_Name_Index := Current_File_Name_Index + 1;
-- Get the file and directory name
File_Name := File_Names (Current_File_Name_Index);
Fptr := File_Name'First;
for J in reverse File_Name'Range loop
if File_Name (J) = Directory_Separator
or else File_Name (J) = '/'
then
if J = File_Name'Last then
Fail ("File name missing");
end if;
Fptr := J + 1;
exit;
end if;
end loop;
-- Save name of directory in which main unit resides for use in
-- locating other units
Dir_Name := new String'(File_Name (File_Name'First .. Fptr - 1));
case Running_Program is
when Compiler =>
Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
Look_In_Primary_Directory_For_Current_Main := True;
when Make =>
Src_Search_Directories.Table (Primary_Directory) := Dir_Name;
if Fptr > File_Name'First then
Look_In_Primary_Directory_For_Current_Main := True;
end if;
when Binder | Gnatls =>
Dir_Name := Normalize_Directory_Name (Dir_Name.all);
Lib_Search_Directories.Table (Primary_Directory) := Dir_Name;
when Unspecified =>
null;
end case;
Name_Len := File_Name'Last - Fptr + 1;
Name_Buffer (1 .. Name_Len) := File_Name (Fptr .. File_Name'Last);
Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
Current_Main := File_Name_Type (Name_Find);
-- In the gnatmake case, the main file may have not have the
-- extension. Try ".adb" first then ".ads"
if Running_Program = Make then
declare
Orig_Main : constant File_Name_Type := Current_Main;
begin
if Strip_Suffix (Orig_Main) = Orig_Main then
Current_Main := Append_Suffix_To_File_Name (Orig_Main, ".adb");
if Full_Source_Name (Current_Main) = No_File then
Current_Main :=
Append_Suffix_To_File_Name (Orig_Main, ".ads");
if Full_Source_Name (Current_Main) = No_File then
Current_Main := Orig_Main;
end if;
end if;
end if;
end;
end if;
return Current_Main;
end Next_Main_File;
------------------------------
-- Normalize_Directory_Name --
------------------------------
function Normalize_Directory_Name (Directory : String) return String_Ptr is
function Is_Quoted (Path : String) return Boolean;
pragma Inline (Is_Quoted);
-- Returns true if Path is quoted (either double or single quotes)
---------------
-- Is_Quoted --
---------------
function Is_Quoted (Path : String) return Boolean is
First : constant Character := Path (Path'First);
Last : constant Character := Path (Path'Last);
begin
if (First = ''' and then Last = ''')
or else
(First = '"' and then Last = '"')
then
return True;
else
return False;
end if;
end Is_Quoted;
Result : String_Ptr;
-- Start of processing for Normalize_Directory_Name
begin
if Directory'Length = 0 then
Result := new String'(Hostparm.Normalized_CWD);
elsif Is_Directory_Separator (Directory (Directory'Last)) then
Result := new String'(Directory);
elsif Is_Quoted (Directory) then
-- This is a quoted string, it certainly means that the directory
-- contains some spaces for example. We can safely remove the quotes
-- here as the OS_Lib.Normalize_Arguments will be called before any
-- spawn routines. This ensure that quotes will be added when needed.
Result := new String (1 .. Directory'Length - 1);
Result (1 .. Directory'Length - 1) :=
Directory (Directory'First + 1 .. Directory'Last - 1);
Result (Result'Last) := Directory_Separator;
else
Result := new String (1 .. Directory'Length + 1);
Result (1 .. Directory'Length) := Directory;
Result (Directory'Length + 1) := Directory_Separator;
end if;
return Result;
end Normalize_Directory_Name;
---------------------
-- Number_Of_Files --
---------------------
function Number_Of_Files return Int is
begin
return Number_File_Names;
end Number_Of_Files;
-------------------------------
-- Object_Dir_Default_Prefix --
-------------------------------
function Object_Dir_Default_Prefix return String is
Object_Dir : String_Access :=
String_Access (Update_Path (Object_Dir_Default_Name));
begin
if Object_Dir = null then
return "";
else
declare
Result : constant String := Object_Dir.all;
begin
Free (Object_Dir);
return Result;
end;
end if;
end Object_Dir_Default_Prefix;
----------------------
-- Object_File_Name --
----------------------
function Object_File_Name (N : File_Name_Type) return File_Name_Type is
begin
if N = No_File then
return No_File;
end if;
Get_Name_String (N);
Name_Len := Name_Len - ALI_Suffix'Length - 1;
for J in Target_Object_Suffix'Range loop
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := Target_Object_Suffix (J);
end loop;
return Name_Enter;
end Object_File_Name;
--------------------------
-- OS_Time_To_GNAT_Time --
--------------------------
function OS_Time_To_GNAT_Time (T : OS_Time) return Time_Stamp_Type is
GNAT_Time : Time_Stamp_Type;
Y : Year_Type;
Mo : Month_Type;
D : Day_Type;
H : Hour_Type;
Mn : Minute_Type;
S : Second_Type;
begin
GM_Split (T, Y, Mo, D, H, Mn, S);
Make_Time_Stamp
(Year => Nat (Y),
Month => Nat (Mo),
Day => Nat (D),
Hour => Nat (H),
Minutes => Nat (Mn),
Seconds => Nat (S),
TS => GNAT_Time);
return GNAT_Time;
end OS_Time_To_GNAT_Time;
------------------
-- Program_Name --
------------------
function Program_Name (Nam : String) return String_Access is
Res : String_Access;
begin
-- Get the name of the current program being executed
Find_Program_Name;
-- Find the target prefix if any, for the cross compilation case
-- for instance in "alpha-dec-vxworks-gcc" the target prefix is
-- "alpha-dec-vxworks-"
while Name_Len > 0 loop
-- All done if we find the last hyphen
if Name_Buffer (Name_Len) = '-' then
exit;
-- If directory separator found, we don't want to look further
-- since in this case, no prefix has been found.
elsif Is_Directory_Separator (Name_Buffer (Name_Len)) then
Name_Len := 0;
exit;
end if;
Name_Len := Name_Len - 1;
end loop;
-- Create the new program name
Res := new String (1 .. Name_Len + Nam'Length);
Res.all (1 .. Name_Len) := Name_Buffer (1 .. Name_Len);
Res.all (Name_Len + 1 .. Name_Len + Nam'Length) := Nam;
return Res;
end Program_Name;
------------------------------
-- Read_Default_Search_Dirs --
------------------------------
function Read_Default_Search_Dirs
(Search_Dir_Prefix : String_Access;
Search_File : String_Access;
Search_Dir_Default_Name : String_Access) return String_Access
is
Prefix_Len : constant Integer := Search_Dir_Prefix.all'Length;
Buffer : String (1 .. Prefix_Len + Search_File.all'Length + 1);
File_FD : File_Descriptor;
S, S1 : String_Access;
Len : Integer;
Curr : Integer;
Actual_Len : Integer;
J1 : Integer;
Prev_Was_Separator : Boolean;
Nb_Relative_Dir : Integer;
function Is_Relative (S : String; K : Positive) return Boolean;
pragma Inline (Is_Relative);
-- Returns True if a relative directory specification is found
-- in S at position K, False otherwise.
-----------------
-- Is_Relative --
-----------------
function Is_Relative (S : String; K : Positive) return Boolean is
begin
return not Is_Absolute_Path (S (K .. S'Last));
end Is_Relative;
-- Start of processing for Read_Default_Search_Dirs
begin
-- Construct a C compatible character string buffer
Buffer (1 .. Search_Dir_Prefix.all'Length)
:= Search_Dir_Prefix.all;
Buffer (Search_Dir_Prefix.all'Length + 1 .. Buffer'Last - 1)
:= Search_File.all;
Buffer (Buffer'Last) := ASCII.NUL;
File_FD := Open_Read (Buffer'Address, Binary);
if File_FD = Invalid_FD then
return Search_Dir_Default_Name;
end if;
Len := Integer (File_Length (File_FD));
-- An extra character for a trailing Path_Separator is allocated
S := new String (1 .. Len + 1);
S (Len + 1) := Path_Separator;
-- Read the file. Note that the loop is not necessary since the
-- whole file is read at once except on VMS.
Curr := 1;
Actual_Len := Len;
while Actual_Len /= 0 loop
Actual_Len := Read (File_FD, S (Curr)'Address, Len);
Curr := Curr + Actual_Len;
end loop;
-- Process the file, translating line and file ending
-- control characters to a path separator character.
Prev_Was_Separator := True;
Nb_Relative_Dir := 0;
for J in 1 .. Len loop
if S (J) in ASCII.NUL .. ASCII.US
or else S (J) = ' '
then
S (J) := Path_Separator;
end if;
if S (J) = Path_Separator then
Prev_Was_Separator := True;
else
if Prev_Was_Separator and then Is_Relative (S.all, J) then
Nb_Relative_Dir := Nb_Relative_Dir + 1;
end if;
Prev_Was_Separator := False;
end if;
end loop;
if Nb_Relative_Dir = 0 then
return S;
end if;
-- Add the Search_Dir_Prefix to all relative paths
S1 := new String (1 .. S'Length + Nb_Relative_Dir * Prefix_Len);
J1 := 1;
Prev_Was_Separator := True;
for J in 1 .. Len + 1 loop
if S (J) = Path_Separator then
Prev_Was_Separator := True;
else
if Prev_Was_Separator and then Is_Relative (S.all, J) then
S1 (J1 .. J1 + Prefix_Len - 1) := Search_Dir_Prefix.all;
J1 := J1 + Prefix_Len;
end if;
Prev_Was_Separator := False;
end if;
S1 (J1) := S (J);
J1 := J1 + 1;
end loop;
Free (S);
return S1;
end Read_Default_Search_Dirs;
-----------------------
-- Read_Library_Info --
-----------------------
function Read_Library_Info
(Lib_File : File_Name_Type;
Fatal_Err : Boolean := False) return Text_Buffer_Ptr
is
Lib_FD : File_Descriptor;
-- The file descriptor for the current library file. A negative value
-- indicates failure to open the specified source file.
Text : Text_Buffer_Ptr;
-- Allocated text buffer
Status : Boolean;
-- For the calls to Close
begin
Current_Full_Lib_Name := Find_File (Lib_File, Library);
Current_Full_Obj_Name := Object_File_Name (Current_Full_Lib_Name);
if Current_Full_Lib_Name = No_File then
if Fatal_Err then
Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
else
Current_Full_Obj_Stamp := Empty_Time_Stamp;
return null;
end if;
end if;
Get_Name_String (Current_Full_Lib_Name);
Name_Buffer (Name_Len + 1) := ASCII.NUL;
-- Open the library FD, note that we open in binary mode, because as
-- documented in the spec, the caller is expected to handle either
-- DOS or Unix mode files, and there is no point in wasting time on
-- text translation when it is not required.
Lib_FD := Open_Read (Name_Buffer'Address, Binary);
if Lib_FD = Invalid_FD then
if Fatal_Err then
Fail ("Cannot open: ", Name_Buffer (1 .. Name_Len));
else
Current_Full_Obj_Stamp := Empty_Time_Stamp;
return null;
end if;
end if;
-- Check for object file consistency if requested
if Opt.Check_Object_Consistency then
Current_Full_Lib_Stamp := File_Stamp (Current_Full_Lib_Name);
Current_Full_Obj_Stamp := File_Stamp (Current_Full_Obj_Name);
if Current_Full_Obj_Stamp (1) = ' ' then
-- When the library is readonly, always assume that
-- the object is consistent.
if Is_Readonly_Library (Current_Full_Lib_Name) then
Current_Full_Obj_Stamp := Current_Full_Lib_Stamp;
elsif Fatal_Err then
Get_Name_String (Current_Full_Obj_Name);
Close (Lib_FD, Status);
-- No need to check the status, we fail anyway
Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
else
Current_Full_Obj_Stamp := Empty_Time_Stamp;
Close (Lib_FD, Status);
-- No need to check the status, we return null anyway
return null;
end if;
end if;
end if;
-- Read data from the file
declare
Len : constant Integer := Integer (File_Length (Lib_FD));
-- Length of source file text. If it doesn't fit in an integer
-- we're probably stuck anyway (>2 gigs of source seems a lot!)
Actual_Len : Integer := 0;
Lo : constant Text_Ptr := 0;
-- Low bound for allocated text buffer
Hi : Text_Ptr := Text_Ptr (Len);
-- High bound for allocated text buffer. Note length is Len + 1
-- which allows for extra EOF character at the end of the buffer.
begin
-- Allocate text buffer. Note extra character at end for EOF
Text := new Text_Buffer (Lo .. Hi);
-- Some systems (e.g. VMS) have file types that require one
-- read per line, so read until we get the Len bytes or until
-- there are no more characters.
Hi := Lo;
loop
Actual_Len := Read (Lib_FD, Text (Hi)'Address, Len);
Hi := Hi + Text_Ptr (Actual_Len);
exit when Actual_Len = Len or Actual_Len <= 0;
end loop;
Text (Hi) := EOF;
end;
-- Read is complete, close file and we are done
Close (Lib_FD, Status);
-- The status should never be False. But, if it is, what can we do?
-- So, we don't test it.
return Text;
end Read_Library_Info;
----------------------
-- Read_Source_File --
----------------------
procedure Read_Source_File
(N : File_Name_Type;
Lo : Source_Ptr;
Hi : out Source_Ptr;
Src : out Source_Buffer_Ptr;
T : File_Type := Source)
is
Source_File_FD : File_Descriptor;
-- The file descriptor for the current source file. A negative value
-- indicates failure to open the specified source file.
Len : Integer;
-- Length of file. Assume no more than 2 gigabytes of source!
Actual_Len : Integer;
Status : Boolean;
-- For the call to Close
-- LLVM local
pragma Warnings (Off, Status);
begin
Current_Full_Source_Name := Find_File (N, T);
Current_Full_Source_Stamp := File_Stamp (Current_Full_Source_Name);
if Current_Full_Source_Name = No_File then
-- If we were trying to access the main file and we could not
-- find it we have an error.
if N = Current_Main then
Get_Name_String (N);
Fail ("Cannot find: ", Name_Buffer (1 .. Name_Len));
end if;
Src := null;
Hi := No_Location;
return;
end if;
Get_Name_String (Current_Full_Source_Name);
Name_Buffer (Name_Len + 1) := ASCII.NUL;
-- Open the source FD, note that we open in binary mode, because as
-- documented in the spec, the caller is expected to handle either
-- DOS or Unix mode files, and there is no point in wasting time on
-- text translation when it is not required.
Source_File_FD := Open_Read (Name_Buffer'Address, Binary);
if Source_File_FD = Invalid_FD then
Src := null;
Hi := No_Location;
return;
end if;
-- Prepare to read data from the file
Len := Integer (File_Length (Source_File_FD));
-- Set Hi so that length is one more than the physical length,
-- allowing for the extra EOF character at the end of the buffer
Hi := Lo + Source_Ptr (Len);
-- Do the actual read operation
declare
subtype Actual_Source_Buffer is Source_Buffer (Lo .. Hi);
-- Physical buffer allocated
type Actual_Source_Ptr is access Actual_Source_Buffer;
-- This is the pointer type for the physical buffer allocated
Actual_Ptr : constant Actual_Source_Ptr := new Actual_Source_Buffer;
-- And this is the actual physical buffer
begin
-- Allocate source buffer, allowing extra character at end for EOF
-- Some systems (e.g. VMS) have file types that require one
-- read per line, so read until we get the Len bytes or until
-- there are no more characters.
Hi := Lo;
loop
Actual_Len := Read (Source_File_FD, Actual_Ptr (Hi)'Address, Len);
Hi := Hi + Source_Ptr (Actual_Len);
exit when Actual_Len = Len or Actual_Len <= 0;
end loop;
Actual_Ptr (Hi) := EOF;
-- Now we need to work out the proper virtual origin pointer to
-- return. This is exactly Actual_Ptr (0)'Address, but we have
-- to be careful to suppress checks to compute this address.
declare
pragma Suppress (All_Checks);
pragma Warnings (Off);
-- This use of unchecked conversion is aliasing safe
function To_Source_Buffer_Ptr is new
Unchecked_Conversion (Address, Source_Buffer_Ptr);
pragma Warnings (On);
begin
Src := To_Source_Buffer_Ptr (Actual_Ptr (0)'Address);
end;
end;
-- Read is complete, get time stamp and close file and we are done
Close (Source_File_FD, Status);
-- The status should never be False. But, if it is, what can we do?
-- So, we don't test it.
end Read_Source_File;
-------------------
-- Relocate_Path --
-------------------
function Relocate_Path
(Prefix : String;
Path : String) return String_Ptr
is
S : String_Ptr;
procedure set_std_prefix (S : String; Len : Integer);
pragma Import (C, set_std_prefix);
begin
if Std_Prefix = null then
Std_Prefix := Executable_Prefix;
if Std_Prefix.all /= "" then
-- Remove trailing directory separator when calling set_std_prefix
set_std_prefix (Std_Prefix.all, Std_Prefix'Length - 1);
end if;
end if;
if Path (Prefix'Range) = Prefix then
if Std_Prefix.all /= "" then
S := new String
(1 .. Std_Prefix'Length + Path'Last - Prefix'Last);
S (1 .. Std_Prefix'Length) := Std_Prefix.all;
S (Std_Prefix'Length + 1 .. S'Last) :=
Path (Prefix'Last + 1 .. Path'Last);
return S;
end if;
end if;
return new String'(Path);
end Relocate_Path;
-----------------
-- Set_Program --
-----------------
procedure Set_Program (P : Program_Type) is
begin
if Program_Set then
Fail ("Set_Program called twice");
end if;
Program_Set := True;
Running_Program := P;
end Set_Program;
----------------
-- Shared_Lib --
----------------
function Shared_Lib (Name : String) return String is
Library : String (1 .. Name'Length + Library_Version'Length + 3);
-- 3 = 2 for "-l" + 1 for "-" before lib version
begin
Library (1 .. 2) := "-l";
Library (3 .. 2 + Name'Length) := Name;
Library (3 + Name'Length) := '-';
Library (4 + Name'Length .. Library'Last) := Library_Version;
if OpenVMS_On_Target then
for K in Library'First + 2 .. Library'Last loop
if Library (K) = '.' or else Library (K) = '-' then
Library (K) := '_';
end if;
end loop;
end if;
return Library;
end Shared_Lib;
----------------------
-- Smart_File_Stamp --
----------------------
function Smart_File_Stamp
(N : File_Name_Type;
T : File_Type) return Time_Stamp_Type
is
Time_Stamp : Time_Stamp_Type;
begin
if not File_Cache_Enabled then
return File_Stamp (Find_File (N, T));
end if;
Time_Stamp := File_Stamp_Hash_Table.Get (N);
if Time_Stamp (1) = ' ' then
Time_Stamp := File_Stamp (Smart_Find_File (N, T));
File_Stamp_Hash_Table.Set (N, Time_Stamp);
end if;
return Time_Stamp;
end Smart_File_Stamp;
---------------------
-- Smart_Find_File --
---------------------
function Smart_Find_File
(N : File_Name_Type;
T : File_Type) return File_Name_Type
is
Full_File_Name : File_Name_Type;
begin
if not File_Cache_Enabled then
return Find_File (N, T);
end if;
Full_File_Name := File_Name_Hash_Table.Get (N);
if Full_File_Name = No_File then
Full_File_Name := Find_File (N, T);
File_Name_Hash_Table.Set (N, Full_File_Name);
end if;
return Full_File_Name;
end Smart_Find_File;
----------------------
-- Source_File_Data --
----------------------
procedure Source_File_Data (Cache : Boolean) is
begin
File_Cache_Enabled := Cache;
end Source_File_Data;
-----------------------
-- Source_File_Stamp --
-----------------------
function Source_File_Stamp (N : File_Name_Type) return Time_Stamp_Type is
begin
return Smart_File_Stamp (N, Source);
end Source_File_Stamp;
---------------------
-- Strip_Directory --
---------------------
function Strip_Directory (Name : File_Name_Type) return File_Name_Type is
begin
Get_Name_String (Name);
for J in reverse 1 .. Name_Len - 1 loop
-- If we find the last directory separator
if Is_Directory_Separator (Name_Buffer (J)) then
-- Return the part of Name that follows this last directory
-- separator.
Name_Buffer (1 .. Name_Len - J) := Name_Buffer (J + 1 .. Name_Len);
Name_Len := Name_Len - J;
return Name_Find;
end if;
end loop;
-- There were no directory separator, just return Name
return Name;
end Strip_Directory;
------------------
-- Strip_Suffix --
------------------
function Strip_Suffix (Name : File_Name_Type) return File_Name_Type is
begin
Get_Name_String (Name);
for J in reverse 2 .. Name_Len loop
-- If we found the last '.', return part of Name that precedes it
if Name_Buffer (J) = '.' then
Name_Len := J - 1;
return Name_Enter;
end if;
end loop;
return Name;
end Strip_Suffix;
---------------------------
-- To_Canonical_Dir_Spec --
---------------------------
function To_Canonical_Dir_Spec
(Host_Dir : String;
Prefix_Style : Boolean) return String_Access
is
function To_Canonical_Dir_Spec
(Host_Dir : Address;
Prefix_Flag : Integer) return Address;
pragma Import (C, To_Canonical_Dir_Spec, "__gnat_to_canonical_dir_spec");
C_Host_Dir : String (1 .. Host_Dir'Length + 1);
Canonical_Dir_Addr : Address;
Canonical_Dir_Len : Integer;
begin
C_Host_Dir (1 .. Host_Dir'Length) := Host_Dir;
C_Host_Dir (C_Host_Dir'Last) := ASCII.NUL;
if Prefix_Style then
Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 1);
else
Canonical_Dir_Addr := To_Canonical_Dir_Spec (C_Host_Dir'Address, 0);
end if;
Canonical_Dir_Len := C_String_Length (Canonical_Dir_Addr);
if Canonical_Dir_Len = 0 then
return null;
else
return To_Path_String_Access (Canonical_Dir_Addr, Canonical_Dir_Len);
end if;
exception
when others =>
Fail ("erroneous directory spec: ", Host_Dir);
return null;
end To_Canonical_Dir_Spec;
---------------------------
-- To_Canonical_File_List --
---------------------------
function To_Canonical_File_List
(Wildcard_Host_File : String;
Only_Dirs : Boolean) return String_Access_List_Access
is
function To_Canonical_File_List_Init
(Host_File : Address;
Only_Dirs : Integer) return Integer;
pragma Import (C, To_Canonical_File_List_Init,
"__gnat_to_canonical_file_list_init");
function To_Canonical_File_List_Next return Address;
pragma Import (C, To_Canonical_File_List_Next,
"__gnat_to_canonical_file_list_next");
procedure To_Canonical_File_List_Free;
pragma Import (C, To_Canonical_File_List_Free,
"__gnat_to_canonical_file_list_free");
Num_Files : Integer;
C_Wildcard_Host_File : String (1 .. Wildcard_Host_File'Length + 1);
begin
C_Wildcard_Host_File (1 .. Wildcard_Host_File'Length) :=
Wildcard_Host_File;
C_Wildcard_Host_File (C_Wildcard_Host_File'Last) := ASCII.NUL;
-- Do the expansion and say how many there are
Num_Files := To_Canonical_File_List_Init
(C_Wildcard_Host_File'Address, Boolean'Pos (Only_Dirs));
declare
Canonical_File_List : String_Access_List (1 .. Num_Files);
Canonical_File_Addr : Address;
Canonical_File_Len : Integer;
begin
-- Retrieve the expanded directoy names and build the list
for J in 1 .. Num_Files loop
Canonical_File_Addr := To_Canonical_File_List_Next;
Canonical_File_Len := C_String_Length (Canonical_File_Addr);
Canonical_File_List (J) := To_Path_String_Access
(Canonical_File_Addr, Canonical_File_Len);
end loop;
-- Free up the storage
To_Canonical_File_List_Free;
return new String_Access_List'(Canonical_File_List);
end;
end To_Canonical_File_List;
----------------------------
-- To_Canonical_File_Spec --
----------------------------
function To_Canonical_File_Spec
(Host_File : String) return String_Access
is
function To_Canonical_File_Spec (Host_File : Address) return Address;
pragma Import
(C, To_Canonical_File_Spec, "__gnat_to_canonical_file_spec");
C_Host_File : String (1 .. Host_File'Length + 1);
Canonical_File_Addr : Address;
Canonical_File_Len : Integer;
begin
C_Host_File (1 .. Host_File'Length) := Host_File;
C_Host_File (C_Host_File'Last) := ASCII.NUL;
Canonical_File_Addr := To_Canonical_File_Spec (C_Host_File'Address);
Canonical_File_Len := C_String_Length (Canonical_File_Addr);
if Canonical_File_Len = 0 then
return null;
else
return To_Path_String_Access
(Canonical_File_Addr, Canonical_File_Len);
end if;
exception
when others =>
Fail ("erroneous file spec: ", Host_File);
return null;
end To_Canonical_File_Spec;
----------------------------
-- To_Canonical_Path_Spec --
----------------------------
function To_Canonical_Path_Spec
(Host_Path : String) return String_Access
is
function To_Canonical_Path_Spec (Host_Path : Address) return Address;
pragma Import
(C, To_Canonical_Path_Spec, "__gnat_to_canonical_path_spec");
C_Host_Path : String (1 .. Host_Path'Length + 1);
Canonical_Path_Addr : Address;
Canonical_Path_Len : Integer;
begin
C_Host_Path (1 .. Host_Path'Length) := Host_Path;
C_Host_Path (C_Host_Path'Last) := ASCII.NUL;
Canonical_Path_Addr := To_Canonical_Path_Spec (C_Host_Path'Address);
Canonical_Path_Len := C_String_Length (Canonical_Path_Addr);
-- Return a null string (vice a null) for zero length paths, for
-- compatibility with getenv().
return To_Path_String_Access (Canonical_Path_Addr, Canonical_Path_Len);
exception
when others =>
Fail ("erroneous path spec: ", Host_Path);
return null;
end To_Canonical_Path_Spec;
---------------------------
-- To_Host_Dir_Spec --
---------------------------
function To_Host_Dir_Spec
(Canonical_Dir : String;
Prefix_Style : Boolean) return String_Access
is
function To_Host_Dir_Spec
(Canonical_Dir : Address;
Prefix_Flag : Integer) return Address;
pragma Import (C, To_Host_Dir_Spec, "__gnat_to_host_dir_spec");
C_Canonical_Dir : String (1 .. Canonical_Dir'Length + 1);
Host_Dir_Addr : Address;
Host_Dir_Len : Integer;
begin
C_Canonical_Dir (1 .. Canonical_Dir'Length) := Canonical_Dir;
C_Canonical_Dir (C_Canonical_Dir'Last) := ASCII.NUL;
if Prefix_Style then
Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 1);
else
Host_Dir_Addr := To_Host_Dir_Spec (C_Canonical_Dir'Address, 0);
end if;
Host_Dir_Len := C_String_Length (Host_Dir_Addr);
if Host_Dir_Len = 0 then
return null;
else
return To_Path_String_Access (Host_Dir_Addr, Host_Dir_Len);
end if;
end To_Host_Dir_Spec;
----------------------------
-- To_Host_File_Spec --
----------------------------
function To_Host_File_Spec
(Canonical_File : String) return String_Access
is
function To_Host_File_Spec (Canonical_File : Address) return Address;
pragma Import (C, To_Host_File_Spec, "__gnat_to_host_file_spec");
C_Canonical_File : String (1 .. Canonical_File'Length + 1);
Host_File_Addr : Address;
Host_File_Len : Integer;
begin
C_Canonical_File (1 .. Canonical_File'Length) := Canonical_File;
C_Canonical_File (C_Canonical_File'Last) := ASCII.NUL;
Host_File_Addr := To_Host_File_Spec (C_Canonical_File'Address);
Host_File_Len := C_String_Length (Host_File_Addr);
if Host_File_Len = 0 then
return null;
else
return To_Path_String_Access
(Host_File_Addr, Host_File_Len);
end if;
end To_Host_File_Spec;
---------------------------
-- To_Path_String_Access --
---------------------------
function To_Path_String_Access
(Path_Addr : Address;
Path_Len : Integer) return String_Access
is
subtype Path_String is String (1 .. Path_Len);
type Path_String_Access is access Path_String;
function Address_To_Access is new
Unchecked_Conversion (Source => Address,
Target => Path_String_Access);
Path_Access : constant Path_String_Access :=
Address_To_Access (Path_Addr);
Return_Val : String_Access;
begin
Return_Val := new String (1 .. Path_Len);
for J in 1 .. Path_Len loop
Return_Val (J) := Path_Access (J);
end loop;
return Return_Val;
end To_Path_String_Access;
-----------------
-- Update_Path --
-----------------
function Update_Path (Path : String_Ptr) return String_Ptr is
function C_Update_Path (Path, Component : Address) return Address;
pragma Import (C, C_Update_Path, "update_path");
function Strlen (Str : Address) return Integer;
pragma Import (C, Strlen, "strlen");
procedure Strncpy (X : Address; Y : Address; Length : Integer);
pragma Import (C, Strncpy, "strncpy");
In_Length : constant Integer := Path'Length;
In_String : String (1 .. In_Length + 1);
Component_Name : aliased String := "GCC" & ASCII.NUL;
Result_Ptr : Address;
Result_Length : Integer;
Out_String : String_Ptr;
begin
In_String (1 .. In_Length) := Path.all;
In_String (In_Length + 1) := ASCII.NUL;
Result_Ptr := C_Update_Path (In_String'Address,
Component_Name'Address);
Result_Length := Strlen (Result_Ptr);
Out_String := new String (1 .. Result_Length);
Strncpy (Out_String.all'Address, Result_Ptr, Result_Length);
return Out_String;
end Update_Path;
----------------
-- Write_Info --
----------------
procedure Write_Info (Info : String) is
begin
Write_With_Check (Info'Address, Info'Length);
Write_With_Check (EOL'Address, 1);
end Write_Info;
------------------------
-- Write_Program_Name --
------------------------
procedure Write_Program_Name is
Save_Buffer : constant String (1 .. Name_Len) :=
Name_Buffer (1 .. Name_Len);
begin
Find_Program_Name;
-- Convert the name to lower case so error messages are the same on
-- all systems.
for J in 1 .. Name_Len loop
if Name_Buffer (J) in 'A' .. 'Z' then
Name_Buffer (J) :=
Character'Val (Character'Pos (Name_Buffer (J)) + 32);
end if;
end loop;
Write_Str (Name_Buffer (1 .. Name_Len));
-- Restore Name_Buffer which was clobbered by the call to
-- Find_Program_Name
Name_Len := Save_Buffer'Last;
Name_Buffer (1 .. Name_Len) := Save_Buffer;
end Write_Program_Name;
----------------------
-- Write_With_Check --
----------------------
procedure Write_With_Check (A : Address; N : Integer) is
Ignore : Boolean;
begin
if N = Write (Output_FD, A, N) then
return;
else
Write_Str ("error: disk full writing ");
Write_Name_Decoded (Output_File_Name);
Write_Eol;
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := ASCII.NUL;
Delete_File (Name_Buffer'Address, Ignore);
Exit_Program (E_Fatal);
end if;
end Write_With_Check;
----------------------------
-- Package Initialization --
----------------------------
begin
Initialization : declare
function Get_Default_Identifier_Character_Set return Character;
pragma Import (C, Get_Default_Identifier_Character_Set,
"__gnat_get_default_identifier_character_set");
-- Function to determine the default identifier character set,
-- which is system dependent. See Opt package spec for a list of
-- the possible character codes and their interpretations.
function Get_Maximum_File_Name_Length return Int;
pragma Import (C, Get_Maximum_File_Name_Length,
"__gnat_get_maximum_file_name_length");
-- Function to get maximum file name length for system
begin
Identifier_Character_Set := Get_Default_Identifier_Character_Set;
Maximum_File_Name_Length := Get_Maximum_File_Name_Length;
-- Following should be removed by having above function return
-- Integer'Last as indication of no maximum instead of -1 ???
if Maximum_File_Name_Length = -1 then
Maximum_File_Name_Length := Int'Last;
end if;
Src_Search_Directories.Set_Last (Primary_Directory);
Src_Search_Directories.Table (Primary_Directory) := new String'("");
Lib_Search_Directories.Set_Last (Primary_Directory);
Lib_Search_Directories.Table (Primary_Directory) := new String'("");
Osint.Initialize;
end Initialization;
end Osint;